The Echo In The Marrow - Short Horror Story

Some sounds are meant to stay unheard. Tasked with restoring fifty-year-old voice tapes from a lighthouse where three keepers vanished without a trace, audio expert Julian uncovers a hidden subterranean frequency locked within the recording. But as the low-frequency pitch vibrates in his teeth and alters his reality, he realizes the horror isn't trapped on the tape. It's using the sound waves to find its next host.